What ifs in football, as in life, often produce unfulfilled longing and needle s frustration. Alas, there's more to be gained by looking forward.This is what the Titans must have told themselves every day since Peyton Manning, then a free-agent quarterback, chose to sign with Denver after an this-close negotiation with Tenne see.Manning disclosed to The Tenne sean that he nearly became a Titan instead of a Bronco after he was not re-signed by the Colts in 2012 following Alshon Jeffery Jersey neck surgery. The 49ers were also final contenders.MORE: Manning's 18 career milestones |Role with Titans next?"I was pretty close," Manning said at the Middle Tenne see Sports Awards Thursday night.And since then, the Titans have been oh so far from consistent relevance.Since 2012, they've gone: 6-10, 7-9, 2-14 and 3-13. Six different quarterbacks have started games. And they are Donnel Pumphrey Jersey now on their third head coach.Meanwhile, Manning led the Broncosto two Super Bowls, and wonthe Lombardi Trophy last season. He was beset by injuries and age at points during that stretch, particularly last year, but was flanked by one of the best defenses in the league.Woulda-coulda-shoulda. It gets you nowhere. So the Titans Nick Foles Jersey have to move on. Quarterback Marcus Mariota is going into his second season and could be on the verge of a breakout. They traded out of the No. 1 pick in the NFL Draft to add depth. They traded forrunning back DeMarco Murray.Does all of that add up to one Peyton Manning? Maybe not, especially with Chris Johnson no longer his 2k self and Tenne see lacking the depth of Chuck Bednarik Jersey talent that was present in Denver.MORE: Manning makes once-hot HGH story go ice-coldBut there is no need in looking back. The late Bud Adams thought he had a good chance, and he did."I was hoping we would win out," Adams told the Tenne sean back then. "I thought we'd be ahead of Denver. I thought he'd want to stay in Tenne see."Time moves on. The AFC South is up for grabs this season and that's what matters most.